I'm sorry about your back, and I'm sorry he hurt your feelings.
But Suze, I've got to ask--what else do you EXPECT from him? You keep doing the same thing, he keeps doing the same thing, and then you come here and vent. You're separated for a REASON, but it's a very odd separation, since you keep going to him whenever you want something that you should know by now he won't give you.
Why not start making some new friends (outside the social circle you shared)? Maybe start some new activities where you will meet some new people. It might make you less dependent on him for company and comfort--because it seems like you're not going to get either one from him.